// check for the presence of the shield:if(WiFi.status()== WL_NO_SHIELD){Serial.println("WiFi shield not present");// don't continue:while(true);}

// attempt to connect to WiFi network:while( status != WL_CONNECTED){Serial.print("Attempting to connect to SSID: ");Serial.println(ssid);// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
status = WiFi.begin(ssid, pass);}